Renesas R5F526TBADFN#50

Overview

R5F526TBADFN#50 from Renesas is a 32-bit RXv3 microcontroller optimized for motor control and power conversion, featuring 120 MHz operation, 512 KB on-chip code flash, 64 KB SRAM, 16 KB data flash, CAN FD interface, and integrated high-resolution PWM with 260 ps timing resolution. It targets real-time inverter control in industrial drives and HVAC compressors.

For engineers reviewing the R5F526TBADFN#50 datasheet, R5F526TBADFN#50 pinout, R5F526TBADFN#50 application, or R5F526TBADFN#50 equivalent, key selection criteria include its 120 MHz GPTWa timer with 3-phase/5-phase complementary PWM support, dual-bank flash for safe firmware updates, IEC60730-compliant safety features (IWDT, oscillation-stop detection, CRC, RAM test assist), and hardware-accelerated trigonometric functions (TFUv2) for field-oriented control.

Technical Context

The R5F526TBADFN#50 implements the RXv3 CPU core with single-cycle instruction execution, 113 instructions, and optional single-precision FPU compliant with IEEE754. Its clock system integrates PLL, HOCO (16/18/20 MHz), LOCO (240 kHz), and IWDT-dedicated 120 kHz oscillator - enabling independent peripheral clock domains (PCLKA up to 120 MHz, PCLKB/C/D at derived frequencies).

It supports deterministic real-time control via Event Link Controller (ELC) with 183 internal event signals, allowing direct inter-module triggering without CPU intervention - critical for synchronized A/D conversion start, PWM dead-time compensation, and fault response across MTU3d, GPTWa, and CMPCa modules.

Key Specifications

Pinout & Package

PWQN0064KF-A is a 64-pin, 9 × 9 mm, 0.5 mm pitch HWQFN package with exposed thermal pad, rated for –40°C to +105°C operation (G-version). Pin functions align with RX26T Group standard mapping for 64-pin variants.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar motor control MCU applications.

Compared with R5F526TBADFN#50, R5F526TADFN#50 offers identical timing/peripheral performance at reduced memory capacity, while R5F523T5ADFP#30 trades HRPWM precision and TFUv2 acceleration for broader I/O count and mature LQFP packaging - making it viable only for less demanding motor topologies.

Availability

R5F526TBADFN#50 is available at Aetrix Electronics and suitable for industrial motor drives, HVAC compressor control, home appliance inverters, and renewable energy converters requiring stable component supply, long-term lifecycle assurance, and automotive-grade reliability.

Supply support for R5F526TBADFN#50 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Renesas Electronics Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and IoT markets.

The RX26T Group is designed specifically for high-performance motor control and power conversion applications, integrating precision PWM, real-time analog peripherals, and functional safety features into a single chip.

FAQ

What is the maximum operating frequency and CPU architecture of the R5F526TBADFN#50?

The R5F526TBADFN#50 operates at a maximum frequency of 120 MHz using the 32-bit RXv3 CPU core. It achieves 709 CoreMark performance and supports single-cycle instruction execution, 113 instructions, and optional IEEE754-compliant single-precision floating-point unit - all confirmed in the R01DS0407EJ0120 Rev.1.20 datasheet. This architecture enables deterministic real-time response required for field-oriented motor control.

Does the R5F526TBADFN#50 support CAN FD, and what standard does it comply with?

Yes, the R5F526TBADFN#50 integrates one CAN FD module compliant with ISO11898-1:2015, supporting both standard and extended frames. It operates at up to 5 Mbps in the data phase and includes built-in message filtering, FIFO buffering, and error handling - verified in Section 1.1 and Table 1.1 of the R01DS0407EJ0120 datasheet. This makes R5F526TBADFN#50 suitable for high-bandwidth motor control networks in industrial automation.

What is the resolution and timing capability of the high-resolution PWM (HRPWM) in the R5F526TBADFN#50?

The R5F526TBADFN#50 features four HRPWM channels capable of controlling GPTWa outputs with a minimum timing resolution of 260 ps at 120 MHz operation - explicitly stated in the "Features" section (page 1) and Table 1.1 (page 5) of R01DS0407EJ0120 Rev.1.20. This enables sub-nanosecond edge placement for precise dead-time management in SiC and GaN-based inverters, directly improving efficiency and reliability.

How does the R5F526TBADFN#50 support IEC60730 Class B compliance for household appliances?

The R5F526TBADFN#50 includes dedicated hardware for IEC60730 Class B: oscillation-stop detection, independent watchdog timer (IWDT) with window function, CRC calculator (CRCA), memory protection unit (MPU), register write protection, and RAM test assist via DOC. These features are documented in the "Features" section (page 1) and Section 1.1 (page 2) of R01DS0407EJ0120 Rev.1.20 - reducing external safety components and simplifying certification for R5F526TBADFN#50-based designs.

What package type and temperature grade does the R5F526TBADFN#50 use?

The R5F526TBADFN#50 uses the PWQN0064KF-A package: a 64-pin HWQFN, 9 × 9 mm body, 0.5 mm pitch, with exposed thermal pad. It is rated for –40°C to +105°C operation (G-version), as specified in the "Package Information" section (page 1) and Table 1.2 of R01DS0407EJ0120 Rev.1.20. This industrial-grade thermal rating supports deployment in high-ambient environments like motor drive enclosures and HVAC systems.